google/re2

RE2 is a fast, safe, and thread-friendly regular expression library written in C++.

C++
Backend & APIs
API Frameworks
BSD-3-Clause

9.6K

Stars

1.2K

Forks

Aug 18, 2014

Created

Jan 22, 2026

Last Updated

Project Analytics

Stars Growth (1 Month)

+24

+0.3% change

Avg Daily Growth (1 Month)

+0.9

stars per day

Fork/Star Ratio (All Time)

12.6%

Good engagement

Lifetime Growth

2.3

stars/day over 4.2K days

Stars Over Time

Forks Over Time

Open Issues Over Time

Pull Requests Over Time

Commits Over Time

AI-Generated Tags

regex
performance
thread-safe
pattern-matching
C++

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